* {
  margin: 0;
  padding: 0;
}
.header {
  position: fixed;
  top: 0px;
  width: 100%;
  height: 88px;
  background-color: #5fc0cd;
  display: flex;
  justify-content: center;
  align-items: center;
}
.header .header1 {
  width: 140px;
  height: 70px;
  font-family: "SimHei";
  font-size: 32px;
  color: white;
  outline: none;
  cursor: pointer;
  background-color: #55a8b3;
  border: none;
  border-radius: 10px;
}
.header .header2 {
  width: 140px;
  height: 70px;
  font-family: "SimHei";
  font-size: 32px;
  color: #5fc0cd;
  outline: none;
  cursor: pointer;
  background-color: white;
  border: none;
  border-radius: 10px;
}
.header .header2 a:link {
  color: #5fc0cd;
  text-decoration: none;
}
.header .header2 a:visited {
  color: #5fc0cd;
}
.header3 {
  position: fixed;
  top: 22px;
  right: 2vw;
  background-color: transparent;
  border-style: none;
  outline: none;
  cursor: pointer;
}
.footer {
  position: fixed;
  bottom: 0px;
  width: 100%;
  height: 100px;
  background-color: #f8fafb;
  border-top: 1px solid #e2eaec;
  display: flex;
  justify-content: center;
  align-items: center;
}
.footer span {
  display: inline-block;
  width: 46px;
  height: 40px;
  border: none;
  background-image: url(img/sprites.png);
}
.footer .footer1 {
  font-size: 16px;
  color: #5fc0cd;
  background-color: transparent;
  border-style: none;
  outline: none;
  cursor: pointer;
  margin-right: 10%;
}
.footer .footer1 .a1 {
  background-position: 0 -110px;
}
.footer .footer2 {
  font-size: 16px;
  color: #999999;
  background-color: transparent;
  border-style: none;
  outline: none;
  cursor: pointer;
  margin-left: 10%;
}
.footer .footer2 .a2 {
  background-position: -48px -110px;
}
.footer .footer3 {
  background-color: transparent;
  border-style: none;
  outline: none;
  cursor: pointer;
}
#nav {
  position: fixed;
  top: 88px;
  width: 100%;
  height: 80px;
  font-size: 28px;
  color: #999999;
  border-bottom: 1px solid #e2eaec;
  display: flex;
  list-style: none;
}
#nav li {
  margin: 21.5px auto;
}
#nav :hover li {
  display: block;
}
#nav li ul li {
  display: none;
}
.main {
  position: fixed;
  top: 168px;
  bottom: 100px;
  width: 100%;
  overflow: auto;
  color: #999999;
}
.main span {
  display: inline-block;
  width: 24px;
  height: 24px;
  border: none;
  background-image: url(img/sprites.png);
  vertical-align: middle;
}
.main .a3 {
  background-position: 0 0;
}
.main .a4 {
  background-position: -25px 0;
}
.main .box1 {
  height: 50px;
  float: left;
  clear: both;
  line-height: 50px;
}
.main .box2 {
  height: 50px;
  color: black;
  float: left;
  clear: both;
  line-height: 50px;
}
.main .box3 {
  height: 50px;
  float: left;
  clear: both;
  line-height: 50px;
}
.main .price {
  float: right;
  color: red;
  font-size: 24px;
  line-height: 50px;
}
.main #main {
  height: 150px;
  border-bottom: 1px #e2eaec solid;
  padding: 0 20px 0 20px;
}
